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Mary King — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this Mary King across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Fred & Mattie — first a daughter (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | King |
| Given Name | Mary H |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Marblehead |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Automobile Insurance |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 236 |
| Highest Grade | C 2 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Stenographer |
| Township / Ward | Marblehead |
| Est. Birth Year | ~1918 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary King | Daughter | — | 22 | ~1918 |
| Evelyn King | Head | — | 58 | ~1882 |
| A King | Son | — | 24 | ~1916 |
Census Appearances
1920
Essex, Massachusetts
Other, age 2
Essex, Massachusetts · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Mary |
| Relationship to Head | Granddaughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Essex, Massachusetts
Daughter, age 12
Essex, Massachusetts · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Daughter, age 22
Essex-County, Massachusetts · implied b. ~1918 — 3 household members
| Surname | King |
| Given Name | Mary H |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Marblehead |
| 1935 Residence (County) | Essex |
| Occupation | Stenographer |
| Industry | Automobile Insurance |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 236 |
| Highest Grade | C 2 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary King across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Fred King (~0.92 confidence) and mother Mattie King (~0.92 confidence) and mother Evelyn King (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Fred King
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Mattie King
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Evelyn King
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary King
Daughter · 1940 · age 22 · b. ~1918 · Massachusetts
★ You are viewing this record
Sibling
A King
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01585-00163)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Paul M C Bradish | 18 | Head | — | Massachusetts |
| 42 | Samuel H Bradish | 45 | Son | Policeman | Massachusetts |
| 43 | Hazel G Bradish | 40 | Wife | — | Massachusetts |
| 44 | Evelyn E King | 58 | Head | — | Newfoundland |
| 45 | A Gordon King | 24 | Son | Painter | Massachusetts |
| 46 | Mary H King THIS PERSON | 22 | Daughter | Stenographer | Massachusetts |
| 47 | Clifton S Warrell | 31 | Head | Machinist | Massachusetts |
| 48 | Mabel H Warrell | 30 | Wife | — | Massachusetts |
| 49 | Richard S Warrell | 1 | Son | — | Massachusetts |
| 50 | Joseph O Fournier | 50 | Head | Barber | New Hampshire |
| 51 | Harriet L Fournier | 45 | Wife | — | Massachusetts |
| 52 | Kay E Fournier | 15 | Son | — | Massachusetts |
| 53 | Beverly Fournier | 13 | Daughter | — | Massachusetts |
| 54 | Joseph C Peach | 75 | Head | — | Massachusetts |
| 55 | Emily S Peach | 77 | Wife | — | Canada-English |
| 56 | Harold N Peach | 46 | Son | Printer | Massachusetts |
| 57 | Ethel M Peach | 41 | Daughter | Chip Packer | Massachusetts |
| 58 | Albert F Conner | 59 | Head | Boat Builder | Massachusetts |
| 59 | Cora Conner | 30 | Wife | — | Massachusetts |
| 60 | Caroline Conner | 10 | Daughter | — | Massachusetts |
| 61 | Frank H Caswell | 32 | Head | Inboard Joiner | Massachusetts |
| 62 | Murielle Caswell | 29 | Wife | — | Massachusetts |
| 63 | Gordon F Caswell | 4 | Son | — | Massachusetts |
| 64 | John W Russell | 52 | Head | Gardner | Massachusetts |
| 65 | Mary E Russell | 54 | Wife | — | Massachusetts |
| 66 | John R Russell | 21 | Son | Machinist | Massachusetts |
| 67 | William W Pickett | 32 | Head | Mechanic | Massachusetts |
| 68 | Madeline L Pickett | 26 | Wife | — | Massachusetts |
| 69 | Robert D Pickett | 5 | Son | — | Massachusetts |
| 70 | Samuel C Peach | 80 | Head | Grocer | Massachusetts |
| 71 | Ernest K Magee | 52 | Head | Chef | Massachusetts |
| 72 | Ethel Magee | 46 | Wife | Waitress | Massachusetts |
| 73 | Ernest K Jr Magee | 26 | Son | Seaman | Massachusetts |
| 74 | Elbridge G Melzard | 54 | Head | Tree Surgeon | Massachusetts |
| 75 | Lu Melzard | 53 | Wife | — | Massachusetts |
| 76 | Gale Melzard | 16 | Daughter | — | Massachusetts |
| 77 | Charlotte Finch | 27 | Step Daughter | — | Massachusetts |
| 78 | William L Goodwin | 22 | Head | Milk Man | Massachusetts |
| 79 | Anne C Goodwin | 23 | Wife | — | Massachusetts |
| 80 | William G Goodwin | 1 | Son | — | Massachusetts |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)